{"product_id":"1616161-ring-backup-fits-caterpillar-models","title":"1616161 Ring-Backup Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Backup Ring for Caterpillar (Cat) Pipelayers and Wheel-Tractor-Scrapers\u003c\/h3\u003e\u003cp\u003eThis backup ring is a hydraulic sealing component used in Caterpillar (Cat) construction equipment hydraulic cylinder assemblies. Backup rings support primary O-ring seals, preventing extrusion under high-pressure conditions and extending seal service life. Made from PTFE material, this ring provides excellent compatibility with engine oil, diesel fuel, and hydraulic fluid while performing reliably across a wide temperature range.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 1616161 (also referenced as 161-6161)\u003c\/li\u003e\n\u003cli\u003eInside Diameter: 13.2 mm (0.52 in)\u003c\/li\u003e\n\u003cli\u003eCross Section Height: 1.4 mm\u003c\/li\u003e\n\u003cli\u003eCross Section Width: 0.7 mm\u003c\/li\u003e\n\u003cli\u003eMaterial: PTFE\u003c\/li\u003e\n\u003cli\u003eWeight: 0.1 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Pipelayers and Wheel-Tractor-Scrapers:\u003c\/strong\u003e Verify specific model fitment using part number 1616161 or 161-6161 in the Cat parts catalog for your serial number range.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1616161, 161-6161\u003c\/p\u003e\u003cp\u003eNew aftermarket replacement part - not remanufactured, not used.\u003c\/p\u003e","brand":"Reliable Aftermarket Parts, Inc® -OD","offers":[{"title":"Default Title","offer_id":42452069548115,"sku":"1616161","price":37.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/RAP_ComingSoon_Tractor_1efa0913-0f53-4bfc-a5b1-66337fe92fef.jpg?v=1757674866","url":"https:\/\/www.reliableaftermarketparts.ca\/products\/1616161-ring-backup-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}